/**
* Clasa Operator grupeaza clasele Produs, Plus, Minus si Cat. 
* Clasa Operator mosteneste clasa Nod.
*/

package q10.Operatori;
import q10.Arbori.*;

public abstract class Operator extends Nod 
{
	
	public abstract String concatTermeni(String aux1,String aux2);
	
}

